CVE-2026-93542: Out-of-bounds read in libXi's XI2 class parsing via size_classes() and copy_classes()

Overview

Severity

Medium (CVSS 6.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-28

EPSS Score

0.25% (percentile: 14.2%)

Affected Products (1)

Other

• 21941-17084

Revision History

• 2026-09-28: Information published.